Pure down toppers add a soft layer to your bed that is wonderfully snug and warm in winter, yet cool and relaxing in summer. The clever box construction keeps the filling firmly in place to ensure a smooth, even layer for superior comfort throughout the night. The quality topper is deep-filled to a depth of 7cm, giving you extra loft for a sublime night's sleep. Four retaining straps help keep the topper firmly attached to your mattress. Conforms to European Standard EN12934.